Where's the fuel pump regulator on 2003 trailblazer?
- mike iLv 51 decade agoFavorite Answer
Fuel pressure regulator?
It's usually in the rear-top behind the upper intake manifold.
It's usually very hard to see, but if you feel back there, you should feel it.
Some of the Chevys are different, but I think most of the 350's got em right back there.